Definition of swainsona
1 capitalized : a genus of Australian herbs and subshrubs (family Leguminosae) having odd-pinnate leaves and racemes of small variously colored flowers with orbicular standard and twisted wings
2 plural -s : any plant of the genus Swainsona — see darling pea
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Origin and Etymology of swainsona
New Latin, from Isaac Swainson †1806 English gardener
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